<template>
	<view class="container">
		<view class="game-body">
			<view class="heading">
      	<text class="title">2048</text>
      	<view class="scores-container">
        	<view class="score-container">{{score}}</view>
      		<view class="best-container">{{highscore||0}}</view>
      	</view>
			</view>
			<view class="above-game">
      	<text class="game-intro">你能拿到2048吗？</text>
      	<text class="restart-button" @click="restart">新游戏</text>
    </view>
		<view class="game-container">
			<view class="game-message" :class="won?'game-won':''">
				<text class="over-msg">{{dataMsg}}</text>
				<view class="lower">
					<text class="retry-button" @click="restart">再试一次</text>
				</view>
			</view>
			<view class="game-message" :class="over?'game-over':''">
				<text class="over-msg">{{dataMsg}}</text>
				<view class="lower">
					<text class="retry-button" @click="restart">再试一次</text>
				</view>
			</view>
	    <view class="grid-container" @touchstart="touchStart" @touchmove="touchMove" @touchend="touchEnd">
				<view v-for="row in grids" class="grid-row">
					<view v-for="item in row" class="grid-cell">
						<view :class="item!=null?'tile tile-'+item.value:''">
							<view v-if="item" class="tile-inner">
								{{item.value}}
							</view>
						</view>
					</view>
				</view>
	    </view>

  	</view>
		</view>
	</view>
</template>

<script>
	import Grid from '@/common/js/grid.js'
	import GameManager from '@/common/js/game_manager.js'
	import Tile from '@/common/js/tile.js'
	import Vue from 'vue'
	export default {
		data() {
			return {
				score: 0,
				highscore: 0,
				grids: [],
				touchStartX: 0,
				touchStartY: 0,
				touchEndX: 0,
				touchEndY: 0,
				isMultiple: false,
				won: false,
				over: false,
				dataMsg: '游戏结束'
			}
		},
		onLoad() {
			this.game_manager = new GameManager(4)
			this.grids = this.game_manager.setup()
			uni.getstor
			this.highscore = uni.getStorageSync('highScore') || 0
		},
		methods: {
			restart: function(){
				// 重置游戏参数
				this.updateView({
					grids: this.game_manager.restart(),
					score: 0,
					won: false,
					over: false
				})
			},
			/* 
			 * 更新视图
			 * data: 移动后返回的数据对象
			 */
			updateView: function(data){
				if(data.over == true){
					this.dataMsg = "游戏结束"
				}
				if(data.won == true){
					this.dataMsg = "恭喜"
				}
				this.grids = data.grids
				this.score = data.score
				this.highscore = data.highScore
				this.won = data.won
				this.over = data.over
				for(let x = 0; x < this.grids.length; x++){
					Vue.set(this.grids, x, data.grids[x])
				}
			},
			touchStart: function(events){
				//是否多指操作
				this.isMultiple = events.touches.length > 1
				if(this.isMultiple){
					return
				}
				let touch = events.touches[0]
				this.touchStartX = touch.clientX
				this.touchStartY = touch.clientY
			},
			touchMove: function(events){
				let touch = events.touches[0]
				this.touchEndX = touch.clientX
				this.touchEndY = touch.clientY
			},
			touchEnd: function(events){
				if(this.isMultiple){
					return
				}
				let dx = this.touchEndX - this.touchStartX
				let dy = this.touchEndY - this.touchStartY
				let absX = Math.abs(dx)
				let absY = Math.abs(dy)
				if(Math.max(absX,absY) > 10){
					// 滑动方向direction: 1向右,3向左,2向下,4向上
					let direction = absX > absY ? ( dx > 0 ? 1 : 3 ) : ( dy > 0 ? 2 : 4)
					let data = this.game_manager.move(direction)
					if(data){
						let highscore = uni.getStorageSync('highScore') || 0
						highscore = Math.max(highscore, data.score)
						uni.setStorageSync('highScore',highscore)
				
						
						this.updateView({
							grids: data.grids,
							score: data.score,
							highScore: highscore,
							won: data.won,
							over: data.over
						})
					}
				}
			}
		}
	}
</script>

<style>
.container {
  margin: 0;
  padding: 10vh 0;
  background: #faf8ef;
  color: #776e65;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;
}

.heading:after {
  content: "";
  display: block;
  clear: both;
}
.title {
  font-size: 80px;
  font-weight: bold;
  margin: 0;
  display: block;
  float: left;
}

.scores-container {
  float: right;
  text-align: right;
}
.score-container, .best-container {
  position: relative;
  display: inline-block;
  background: #bbada0;
  padding: 15px 25px;
  font-size: 25px;
  height: 52px;
  line-height: 47px;
  font-weight: bold;
  border-radius: 3px;
  color: white;
  text-align: center;
  margin: 8px 0 0 8px;
}
.score-container:after, .best-container:after {
  position: absolute;
  width: 100%;
  top: 10px;
  left: 0;
  text-transform: uppercase;
  font-size: 13px;
  line-height: 13px;
  text-align: center;
  color: #eee4da;
}
.score-container .score-addition, .best-container .score-addition {
  position: absolute;
  right: 30px;
  color: red;
  font-size: 25px;
  line-height: 25px;
  font-weight: bold;
  color: rgba(119, 110, 101, 0.9);
  z-index: 100;
 
}
.score-container:after {
  content: "Score";
}
.best-container:after {
  content: "Best";
}
p {
  margin-top: 0;
  margin-bottom: 10px;
  line-height: 1.65;
}
a {
  color: #776e65;
  font-weight: bold;
  text-decoration: underline;
  cursor: pointer;
}
strong.important {
  text-transform: uppercase;
}
hr {
  border: none;
  border-bottom: 1px solid #d8d4d0;
  margin-top: 20px;
  margin-bottom: 30px;
}

.game-container {
  margin-top: 40px;
  position: relative;
  padding: 15px;
  cursor: default;
  -webkit-touch-callout: none;
  -ms-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -ms-touch-action: none;
  touch-action: none;
  background: #bbada0;
  border-radius: 6px;
  width: 500px;
  height: 500px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
	margin: 0 auto;
}
.game-container .game-message {
  /*display: none;*/
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(238, 228, 218, 0.5);
  z-index: 100;
  text-align: center;
}
.game-container .game-message p {
  font-size: 60px;
  font-weight: bold;
  height: 60px;
  line-height: 60px;
  margin-top: 222px;
}
.game-container .game-message .lower {
  display: block;
  margin-top: 59px;
}
.game-container .game-message a {
  display: inline-block;
  background: #8f7a66;
  border-radius: 3px;
  padding: 0 20px;
  text-decoration: none;
  color: #f9f6f2;
  height: 40px;
  line-height: 42px;
  margin-left: 9px;
}
.game-container .game-message .keep-playing-button {
  display: none;
}
.game-container .game-message.game-won {
  background: rgba(237, 194, 46, 0.5);
  color: #f9f6f2;
}
.game-container .game-message.game-won .keep-playing-button {
  display: inline-block;
}
.game-container .game-message.game-won, .game-container .game-message.game-over {
  display: block;
}
.grid-container {
  position: absolute;
  z-index: 1;
}
.grid-row {
  margin-bottom: 15px;
}
.grid-row:last-child {
  margin-bottom: 0;
}
.grid-row:after {
  content: "";
  display: block;
  clear: both;
}
.grid-cell {
  width: 106.25px;
  height: 106.25px;
  margin-right: 15px;
  float: left;
  border-radius: 3px;
  background: rgba(238, 228, 218, 0.35);
}
.grid-cell:last-child {
  margin-right: 0;
}
.tile-container {
  position: absolute;
  z-index: 2;
}
.tile, .tile .tile-inner {
  width: 107px;
  height: 107px;
  line-height: 107px;
}
.tile.tile-position-1-1 {
  -webkit-transform: translate(0px, 0px);
  -moz-transform: translate(0px, 0px);
  -ms-transform: translate(0px, 0px);
  transform: translate(0px, 0px);
}
.tile.tile-position-1-2 {
  -webkit-transform: translate(0px, 121px);
  -moz-transform: translate(0px, 121px);
  -ms-transform: translate(0px, 121px);
  transform: translate(0px, 121px);
}
.tile.tile-position-1-3 {
  -webkit-transform: translate(0px, 242px);
  -moz-transform: translate(0px, 242px);
  -ms-transform: translate(0px, 242px);
  transform: translate(0px, 242px);
}
.tile.tile-position-1-4 {
  -webkit-transform: translate(0px, 363px);
  -moz-transform: translate(0px, 363px);
  -ms-transform: translate(0px, 363px);
  transform: translate(0px, 363px);
}
.tile.tile-position-2-1 {
  -webkit-transform: translate(121px, 0px);
  -moz-transform: translate(121px, 0px);
  -ms-transform: translate(121px, 0px);
  transform: translate(121px, 0px);
}
.tile.tile-position-2-2 {
  -webkit-transform: translate(121px, 121px);
  -moz-transform: translate(121px, 121px);
  -ms-transform: translate(121px, 121px);
  transform: translate(121px, 121px);
}
.tile.tile-position-2-3 {
  -webkit-transform: translate(121px, 242px);
  -moz-transform: translate(121px, 242px);
  -ms-transform: translate(121px, 242px);
  transform: translate(121px, 242px);
}
.tile.tile-position-2-4 {
  -webkit-transform: translate(121px, 363px);
  -moz-transform: translate(121px, 363px);
  -ms-transform: translate(121px, 363px);
  transform: translate(121px, 363px);
}
.tile.tile-position-3-1 {
  -webkit-transform: translate(242px, 0px);
  -moz-transform: translate(242px, 0px);
  -ms-transform: translate(242px, 0px);
  transform: translate(242px, 0px);
}
.tile.tile-position-3-2 {
  -webkit-transform: translate(242px, 121px);
  -moz-transform: translate(242px, 121px);
  -ms-transform: translate(242px, 121px);
  transform: translate(242px, 121px);
}
.tile.tile-position-3-3 {
  -webkit-transform: translate(242px, 242px);
  -moz-transform: translate(242px, 242px);
  -ms-transform: translate(242px, 242px);
  transform: translate(242px, 242px);
}
.tile.tile-position-3-4 {
  -webkit-transform: translate(242px, 363px);
  -moz-transform: translate(242px, 363px);
  -ms-transform: translate(242px, 363px);
  transform: translate(242px, 363px);
}
.tile.tile-position-4-1 {
  -webkit-transform: translate(363px, 0px);
  -moz-transform: translate(363px, 0px);
  -ms-transform: translate(363px, 0px);
  transform: translate(363px, 0px);
}
.tile.tile-position-4-2 {
  -webkit-transform: translate(363px, 121px);
  -moz-transform: translate(363px, 121px);
  -ms-transform: translate(363px, 121px);
  transform: translate(363px, 121px);
}
.tile.tile-position-4-3 {
  -webkit-transform: translate(363px, 242px);
  -moz-transform: translate(363px, 242px);
  -ms-transform: translate(363px, 242px);
  transform: translate(363px, 242px);
}
.tile.tile-position-4-4 {
  -webkit-transform: translate(363px, 363px);
  -moz-transform: translate(363px, 363px);
  -ms-transform: translate(363px, 363px);
  transform: translate(363px, 363px);
}
.tile {
  position: absolute;
  -webkit-transition: 100ms ease-in-out;
  -moz-transition: 100ms ease-in-out;
  transition: 100ms ease-in-out;
  -webkit-transition-property: -webkit-transform;
  -moz-transition-property: -moz-transform;
  transition-property: transform;
}
.tile .tile-inner {
  border-radius: 3px;
  background: #eee4da;
  text-align: center;
  font-weight: bold;
  z-index: 10;
  font-size: 55px;
}
.tile.tile-2 .tile-inner {
  background: #eee4da;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0);
}
.tile.tile-4 .tile-inner {
  background: #ede0c8;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0);
}
.tile.tile-8 .tile-inner {
  color: #f9f6f2;
  background: #f2b179;
}
.tile.tile-16 .tile-inner {
  color: #f9f6f2;
  background: #f59563;
}
.tile.tile-32 .tile-inner {
  color: #f9f6f2;
  background: #f67c5f;
}
.tile.tile-64 .tile-inner {
  color: #f9f6f2;
  background: #f65e3b;
}
.tile.tile-128 .tile-inner {
  color: #f9f6f2;
  background: #edcf72;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.2381), inset 0 0 0 1px rgba(255, 255, 255, 0.14286);
  font-size: 45px;
}
@media screen and (max-width:520px) {
  .tile.tile-128 .tile-inner {
    font-size: 25px;
  }
}
.tile.tile-256 .tile-inner {
  color: #f9f6f2;
  background: #edcc61;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.31746), inset 0 0 0 1px rgba(255, 255, 255, 0.19048);
  font-size: 45px;
}
@media screen and (max-width:520px) {
  .tile.tile-256 .tile-inner {
    font-size: 25px;
  }
}
.tile.tile-512 .tile-inner {
  color: #f9f6f2;
  background: #edc850;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.39683), inset 0 0 0 1px rgba(255, 255, 255, 0.2381);
  font-size: 45px;
}
@media screen and (max-width:520px) {
  .tile.tile-512 .tile-inner {
    font-size: 25px;
  }
}
.tile.tile-1024 .tile-inner {
  color: #f9f6f2;
  background: #edc53f;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.47619), inset 0 0 0 1px rgba(255, 255, 255, 0.28571);
  font-size: 35px;
}
@media screen and (max-width:520px) {
  .tile.tile-1024 .tile-inner {
    font-size: 15px;
  }
}
.tile.tile-2048 .tile-inner {
  color: #f9f6f2;
  background: #edc22e;
  box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.55556), inset 0 0 0 1px rgba(255, 255, 255, 0.33333);
  font-size: 35px;
}
@media screen and (max-width:520px) {
  .tile.tile-2048 .tile-inner {
    font-size: 15px;
  }
}
.tile.tile-super .tile-inner {
  color: #f9f6f2;
  background: #3c3a32;
  font-size: 30px;
}
@media screen and (max-width:520px) {
  .tile.tile-super .tile-inner {
    font-size: 10px;
  }
}

.tile-merged .tile-inner {
  z-index: 20;
}
.above-game:after {
  content: "";
  display: block;
  clear: both;
}
.game-intro {
  float: left;
  line-height: 42px;
  margin-bottom: 0;
}
.restart-button {
  display: inline-block;
  background: #8f7a66;
  border-radius: 3px;
  padding: 0 20px;
  text-decoration: none;
  color: #f9f6f2;
  height: 40px;
  line-height: 42px;
  display: block;
  text-align: center;
  float: right;
}
.game-explanation {
  margin-top: 50px;
}
@media screen and (max-width:520px) {
  html, body {
    font-size: 15px;
  }
  /* body {
    margin: 20px 0;
    padding: 0 20px;
  } */
  .title {
    font-size: 27px;
    margin-top: 15px;
  }
  .container {
    width: 100%;
    margin: 0 auto;
		min-width: 280px;
  }
  .score-container, .best-container {
    margin-top: 0;
    padding: 15px 10px;
    min-width: 75px;
  }
  .heading {
    margin-bottom: 10px;
		padding: 0 20px;
  }
	.above-game{
		padding: 0 20px;
	}
  .game-intro {
    width: 55%;
    display: block;
    box-sizing: border-box;
    line-height: 2.65;
  }
  .restart-button {
    width: 42%;
    padding: 0;
    display: block;
    box-sizing: border-box;
    margin-top: 2px;
  }
  .game-container {
    margin-top: 17px;
    position: relative;
    padding: 10px;
    cursor: default;
    -webkit-touch-callout: none;
    -ms-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -ms-touch-action: none;
    touch-action: none;
    background: #bbada0;
    border-radius: 6px;
    width: 280px;
    height: 280px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
  .game-container .game-message {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(238, 228, 218, 0.5);
    z-index: 100;
    text-align: center;
   
  }
  .game-container .game-message .over-msg {
    display: block;
    font-size: 30px;
    font-weight: bold;
    height: 30px;
    line-height: 30px;
    /*margin-top: 222px;*/
    margin-top: 59px;
  }
  .game-container .game-message .lower {
    display: block;
    margin-top: 59px;
  }
  .game-container .game-message .retry-button {
    display: inline-block;
    background: #8f7a66;
    border-radius: 3px;
    padding: 0 20px;
    text-decoration: none;
    color: #f9f6f2;
    height: 40px;
    line-height: 42px;
    margin-left: 9px;
  }
  .game-container .game-message .keep-playing-button {
    display: none;
  }
  .game-container .game-message.game-won {
    background: rgba(237, 194, 46, 0.5);
    color: #f9f6f2;
  }
  .game-container .game-message.game-won .keep-playing-button {
    display: inline-block;
  }
  .game-container .game-message.game-won, .game-container .game-message.game-over {
    display: block;
  }
  .grid-container {
    position: absolute;
    z-index: 1;
  }
  .grid-row {
    margin-bottom: 10px;
  }
  .grid-row:last-child {
    margin-bottom: 0;
  }
  .grid-row:after {
    content: "";
    display: block;
    clear: both;
  }
  .grid-cell {
    width: 57.5px;
    height: 57.5px;
    margin-right: 10px;
    float: left;
    border-radius: 3px;
    background: rgba(238, 228, 218, 0.35);
  }
  .grid-cell:last-child {
    margin-right: 0;
  }
 
  .tile, .tile .tile-inner {
    width: 58px;
    height: 58px;
    line-height: 58px;
  }
  .tile.tile-position-1-1 {
    -webkit-transform: translate(0px, 0px);
    -moz-transform: translate(0px, 0px);
    -ms-transform: translate(0px, 0px);
    transform: translate(0px, 0px);
  }
  .tile.tile-position-1-2 {
    -webkit-transform: translate(0px, 67px);
    -moz-transform: translate(0px, 67px);
    -ms-transform: translate(0px, 67px);
    transform: translate(0px, 67px);
  }
  .tile.tile-position-1-3 {
    -webkit-transform: translate(0px, 135px);
    -moz-transform: translate(0px, 135px);
    -ms-transform: translate(0px, 135px);
    transform: translate(0px, 135px);
  }
  .tile.tile-position-1-4 {
    -webkit-transform: translate(0px, 202px);
    -moz-transform: translate(0px, 202px);
    -ms-transform: translate(0px, 202px);
    transform: translate(0px, 202px);
  }
  .tile.tile-position-2-1 {
    -webkit-transform: translate(67px, 0px);
    -moz-transform: translate(67px, 0px);
    -ms-transform: translate(67px, 0px);
    transform: translate(67px, 0px);
  }
  .tile.tile-position-2-2 {
    -webkit-transform: translate(67px, 67px);
    -moz-transform: translate(67px, 67px);
    -ms-transform: translate(67px, 67px);
    transform: translate(67px, 67px);
  }
  .tile.tile-position-2-3 {
    -webkit-transform: translate(67px, 135px);
    -moz-transform: translate(67px, 135px);
    -ms-transform: translate(67px, 135px);
    transform: translate(67px, 135px);
  }
  .tile.tile-position-2-4 {
    -webkit-transform: translate(67px, 202px);
    -moz-transform: translate(67px, 202px);
    -ms-transform: translate(67px, 202px);
    transform: translate(67px, 202px);
  }
  .tile.tile-position-3-1 {
    -webkit-transform: translate(135px, 0px);
    -moz-transform: translate(135px, 0px);
    -ms-transform: translate(135px, 0px);
    transform: translate(135px, 0px);
  }
  .tile.tile-position-3-2 {
    -webkit-transform: translate(135px, 67px);
    -moz-transform: translate(135px, 67px);
    -ms-transform: translate(135px, 67px);
    transform: translate(135px, 67px);
  }
  .tile.tile-position-3-3 {
    -webkit-transform: translate(135px, 135px);
    -moz-transform: translate(135px, 135px);
    -ms-transform: translate(135px, 135px);
    transform: translate(135px, 135px);
  }
  .tile.tile-position-3-4 {
    -webkit-transform: translate(135px, 202px);
    -moz-transform: translate(135px, 202px);
    -ms-transform: translate(135px, 202px);
    transform: translate(135px, 202px);
  }
  .tile.tile-position-4-1 {
    -webkit-transform: translate(202px, 0px);
    -moz-transform: translate(202px, 0px);
    -ms-transform: translate(202px, 0px);
    transform: translate(202px, 0px);
  }
  .tile.tile-position-4-2 {
    -webkit-transform: translate(202px, 67px);
    -moz-transform: translate(202px, 67px);
    -ms-transform: translate(202px, 67px);
    transform: translate(202px, 67px);
  }
  .tile.tile-position-4-3 {
    -webkit-transform: translate(202px, 135px);
    -moz-transform: translate(202px, 135px);
    -ms-transform: translate(202px, 135px);
    transform: translate(202px, 135px);
  }
  .tile.tile-position-4-4 {
    -webkit-transform: translate(202px, 202px);
    -moz-transform: translate(202px, 202px);
    -ms-transform: translate(202px, 202px);
    transform: translate(202px, 202px);
  }
  .tile .tile-inner {
    font-size: 35px;
  }
  .game-message p {
    font-size: 30px !important;
    height: 30px !important;
    line-height: 30px !important;
    margin-top: 90px !important;
  }
  .game-message .lower {
    margin-top: 30px !important;
  }
}
</style>
